The lawsuit claims the city of Chicago has breached the Airline Use and Lease Agreement and would give United Airlines five more gates, while taking away four gates from American Airlines.

American Airlines is adding seven new destinations out of O'Hare International Airport and increasing the number of flights out of popular existing destinations for winter.

American Airlines is suing the city of Chicago over a provision in an O'Hare Airport lease agreement it says favors rival United Airlines.

American Airlines' new Flagship Suite business class is set to enter service in June. Here's where you can fly it first.

American Airlines’ new suites with sliding doors are set to start flying on some of its planes in June, a key part of its strategy to compete against more profitable rivals for high-spending customers.

American Airlines (AAL) just debuted a redesigned aircraft that features private suites with sliding doors and chaise lounge-style seating as part of a broader push to elevate its premium international travel experience.